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高速钢拉刀的使用寿命取决于拉刀的质量和拉削条件。为提高拉刀的使用寿命,必须制定合理的热处理制度,选择最佳奥氏体化参数和回火参数,从而获得理想的金相组织,得到满意的力学性能。
The service life of a HSS broach depends on the quality of the broach and the broaching conditions. In order to improve the service life of the broach, a reasonable heat treatment system must be established, the optimal austenitizing parameters and the tempering parameters should be selected so as to obtain the ideal microstructure and satisfactory mechanical properties.